Patent · US Active

Dual stripper apparatus

US9874065B2 · kind B2 · utility

9Cited by

7References

20Claims

0Family size

Assignee

AKER SOLUTIONS AS · NO

Inventor

Kim W. Christensen · Hyggen, NO

Key dates

Filing date	Mar 24, 2015
Grant date	Jan 23, 2018
Priority date	—
Expiry date	Mar 24, 2035

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/072
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A workover riser arrangement designed to allow installation/retrieval of a coiled tubing suspended Electrical Submersible Pumps (ESP) into live wells is described. The installation takes place by the use of a coiled tubing as a running string that extends through respective apparatuses in said workover riser arrangement and further down towards the well bottom. The workover riser apparatus comprises a first (upper) dual stripper apparatus through which said coiled tubing is to extend, a second (lower) dual stripper apparatus through which said coiled tubing is to extend, a surface BOP, if required, and a surface flow tree arranged between the first and second dual stripper apparatus, an EDP, LRP and an XMT arranged below the second dual stripper apparatus.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.